/* 
 * Copyright 2011 Karl Pauls karlpauls@gmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.kalpatec.pojosr.framework.felix.framework.util;

import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.hooks.service.ListenerHook;

public class ListenerHookInfoImpl implements ListenerHook.ListenerInfo
{
    private final BundleContext m_context;
    private final ServiceListener m_listener;
    private final String m_filter;
    private boolean m_removed;

    public ListenerHookInfoImpl(BundleContext context,
            ServiceListener listener, String filter, boolean removed)
    {
        m_context = context;
        m_listener = listener;
        m_filter = filter;
        m_removed = removed;
    }

    public BundleContext getBundleContext()
    {
        return m_context;
    }

    public String getFilter()
    {
        return m_filter;
    }

    public boolean isRemoved()
    {
        return m_removed;
    }

    public boolean equals(Object obj)
    {
        if (obj == this)
        {
            return true;
        }

        if (!(obj instanceof ListenerHookInfoImpl))
        {
            return false;
        }

        ListenerHookInfoImpl other = (ListenerHookInfoImpl) obj;
        return other.m_listener == m_listener
                && (m_filter == null ? other.m_filter == null : m_filter
                        .equals(other.m_filter));
    }

    public int hashCode()
    {
        int rc = 17;

        rc = 37 * rc + m_listener.hashCode();
        if (m_filter != null)
        {
            rc = 37 * rc + m_filter.hashCode();
        }
        return rc;
    }
}